On 2024/9/5 01:25, Andrew Lunn wrote:

quoted

+&gmac1 {

[...]

This has been discussed a few times. You should be using phy-mode
rgmii-id.

After I changed phy-mode to rgmii-id, it seemed to work,
but it didn't transmit any data.
Maybe I made a mistake or should I continue to use phy-mode rgmii?

arch/arm/boot/dts/rockchip/rk3288-phycore-som.dtsi is i think also a
YT8521SC.

According to commit message and some pictures,
rk3288-phycore-som is using TI DP83867 PHY?

Best regards,
Junhao